Trotsenko YuA

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We developed a host-vector system for transformation and gene cloning experiments using the methylotrophic yeast Hansenula polymorpha. Regeneration of protoplasts in a medium containing polyethylene glycol before plating made transformation more efficient and reproducible (2 to 3 x 10(4) micrograms DNA). The frequency of transformation was significantly(More)
Citrate synthase (citrate oxaloacetate-lyase, CoA-acetylating; EC, CS) was isolated and purified to homogeneity from a methylotrophic producer of polyhydroxybutyrate (PHB), Methylobacterium extorquens 15. The purification procedure includes streptomycin sulfate treatment of cell-free extract, ammonium sulfate fractionation, two steps of hydrophobic(More)
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